Injectable Testosterone also exists in other forms which contain a mixture of the forms mentioned above. One example is Sustanon 250.

This blend is composed of about 250mg of the main compound testosterone, divided in this way:

60mg of Testosterone Phenylpropionate

30mg of Testosterone Propionate

60mg of Testosterone Isocaproate

100mg of Testosterone Decanoate

There are also other mixes of Testosterone like 450mg product comprising of many different kinds of Testosterone ester.

Other not so common testosterone types include Acetate and several others found in the same category where Sustanon 250 belongs.

Use of these products for otherwise normal healthy males to increase or enhance athletic performance or strength is not approved nor recommended by health care providers.

This is not only because of potential misuse or abuse of the medication, but because of adverse side effects, especially when combined with other steroids products or performance use of anabolic steroids.

The most common medical use of testosterone products is in the treatment of hypogonadism in males.

Injections are available through prescription only because pure forms are classified as a Schedule III drug due to a moderate potential for abuse.

It also belongs to the anti-doping classification of drugs in regard to athletic performance, competitions, and numerous sporting fields.

When a man takes an anabolic steroid—be it exogenous Testosterone, Trenbolone, Dianabol, or even a seemingly “mild” steroid like Anavar—it ushers in a supraphysical amount of hormones called androgens.

The Hypothalamic Pituitary Testicular Axis (HPTA) connects a network of glands together in the body to maintain a healthy hormonal environment, and it is sensitive to increases and decreases in androgens.

It works through a negative feedback loop, scaling down the production of endogenous testosterone when levels of androgens in the body are high and ramping up production when levels of androgens are low.

The HPTA will usually suppress or shutdown natural testosterone production during an anabolic steroid cycle due the presence of excess androgens in the body.

This can lead to an array of negative effects as the body relies on testosterone to perform a number of functions, not least of which are related to libido and sexual function.

To counteract this effect, bodybuilders will often cycle exogenous testosterone at TRT doses to maintain healthy levels of the hormone in the body.

If testosterone is the main steroid in a stack, it will normally exceed TRT doses and still have the effect of maintaining proper levels.

But if another base steroid is chosen for a cycle, it will always include testosterone at TRT doses at the very least. This is true for every anabolic. Steroids are rarely cycled without testosterone.

TRT doses often consist of 70 – 100 mg a week.

Those intending to use Testosterone esters for TRT require a more relaxed injection routine compared to those who want to use them as performance enhancers.

This is due to the fact that the main aim of TRT is to maintain a steady physiological Testosterone level and also proper physiological function.

Below is the guideline that should be followed by an individual who intends to use a Testosterone variant for TRT as recommended by the medical prescription guidelines:

Testosterone Enanthate: Injection should be administered once every 2 – 4 weeks

Testosterone Cypionate: Injection should be administered once every 2 – 4 weeks

Testosterone Propionate: Injection should be administered 2 – 3 times per week (average of Monday/Friday or Monday/Wednesday/Friday injection protocol)

Sustanon 250 or any Testosterone blends: Injection should be administered once every 3 weeks

It should be noted that there is no hard and fast rule about administering injections for TRT.

The dosage could be varied according to the patient’s diagnosis and recommendation from the doctor.

The usual practice is for doctor and patient to come to an agreed routine of about once a week for Testosterone Enanthate and Testosterone Cypionate.

There is a general consensus within medical doctors that the injection guidelines given by the medical prescription guidelines is due for review in order to be able to achieve a stable blood plasma level as this requires an increase in the frequency of injections administered.

That being said the prescription guidelines remain as it has been indicated above.

The most important thing we are trying to establish here is that the rate at which an injection is given can always be altered to meet individual needs after close monitoring has been done to the blood plasma levels.

One final point about how TRT relates to bodybuilding:

Users of anabolic steroid may find that they are unable to restart natural testosterone production because the HPTA is permanently damaged.

This can lead to lifelong TRT. This is why physique builders take great pains to plan their Post Cycle Therapy.

What are the Different Types of Testosterone?

People are often surprised by the choices available in terms of testosterone injections.

Testosterone dipropionate

Testosterone valerate

Testosterone formate

Testosterone furoate

Testosterone hexahydrobenzoate

Testosterone hexahydrobenzylcarbonate

Testosterone hexyloxyphenylpropionate

Testosterone phenylpropionate

Testosterone isobutyrate

Testosterone phenylbutyrate

Testosterone decanoate

Testosterone isovalerate

Testosterone acetate butyrate

Testosterone undecanoate

Testosterone sulfate

Testosterone stearate

Testosterone buciclate

Testosterone propionate

Testosterone benzoate

Testosterone phosphate

Testosterone caproate

Testosterone cypionate

Testosterone phenylacetate

Testosterone diacetate

Testosterone isocaproate

Testosterone butyrate

Testosterone nicotinate

Testosterone cyclohexylpropionate

Testosterone acetate propionate

Testosterone enanthate

Testosterone acetate

Testosterone enanthate benziloylhydrazone

Testosterone ketolaurate

Testosterone palmitate

Cloxotestosterone acetate

Injections are typically intramuscular, meaning they are injected into a large muscle typically every two to four weeks.

There also numerous topical agents available.

Gels, creams and patches transfer testosterone transdermally. They are commonly used for TRT, but they are not held to have much application in the context of bodybuilding.

These are well recognised creams, gels and patches that

The process of Transdermal administration involves the transfer of substances or ingredients in creams, patches and gel into the body via the pores on the skin. From here, they proceed to the bloodstreams and circulate round the body.

This method has its own advantages and disadvantages, just like every other method of administration.

The main advantage of transdermal administration is the ease of application. All it requires is you rub the required amount of cream or gel on your skin daily.

Topical testosterone is usually preferred by patients who do not like injections.

Testosterone creams and gels are a held to be very effective means for administering testosterone.

Patients who are hypogonadal and have used transdermal testosterone have been observed to experience increases in mood, sexual function, mineral density of the bone and lean mass.

If someone who is not using the cream or gel encounters the skin of someone who has applied the cream, testosterone could be transferred from the user of the cream to the second person.

There are many effects that could arise from situations like this. If for the second person happens to be a child, the effect could be fatal.

We should also point out that side effects and risks associated with injectable testosterone are also prevalent in Transdermal Testosterone application.

Side Effects of Different Types of Testosterone Replacement Therapy

Any form, milligram strength or dosage recommendation when it comes to these products can contribute to side effects or adverse reactions.

Age, the type, the reason for which it is being taken, current health status, milligram strength, and dosage recommendations can all have an impact on minor, moderate, or severe side effects, or contraindications against use.

For example, possibleside effects associated with Axion, a topical type of testosterone, include:

Minor:

Headache

Changes in mood

Irritation at application site

Diarrhea

Nausea or vomiting

Frequent as well as prolonged erections (not necessarily when you want them!)

High blood pressure

Severe:

Difficult or painful urination or increased desire to urinate (some may experience total lack of bladder control)

Any type can interfere with or impact the efficacy of other prescription drugs, over-the-counter products, or dietary supplements. Before using any steroid products, discuss their safety with your doctor.

It is a very powerful hormone that not only influences the endocrine system, but the metabolic system as well, especially if you’re diabetic or are on blood thinners.